Adjustable pipe ditch tunneling device

Abstract

The utility model provides an adjustable pipe ditch tunneling device which is used for solving the problem that in the prior art, the opening degree and the height of an excavated pipe ditch cannot be adjusted according to requirements. Comprising an excavation device, the excavation device comprises a transverse adjusting mechanism, two temple mechanisms hinged to the left end and the right end of the transverse adjusting mechanism correspondingly, a spiral conveying mechanism arranged in the transverse adjusting mechanism, an excavation mechanism and two middle supporting mechanisms hinged to the transverse adjusting mechanism correspondingly, and the excavation mechanism is rotationally connected between the two temple mechanisms; the excavation mechanism comprises a roller shaft rotationally arranged between the two sets of middle supporting mechanisms, a plurality of first excavation assemblies, a hollow roller coaxially and fixedly arranged on the roller shaft in a matched mode, second excavation assemblies symmetrically arranged at the two ends of the roller shaft and an excavation power assembly driving the roller shaft to rotate, and an adjusting space is formed between the inner wall of the hollow roller and the outer wall of the roller shaft; the multiple first excavation assemblies are arranged in the axial direction of the roller shaft and all located in the adjusting space. The device can adapt to different pipe ditch widths and depths.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe trench excavation engineering, in particular to an adjustable pipe trench excavation device. Background Art

[0002] With the rapid development of urban construction, the construction and improvement of underground pipeline networks have become particularly important. The narrowness of urban roads and the increasingly dense traffic and pedestrian flow have made urban pipeline construction face many challenges and safety hazards. Specifically, the frequency of urban road use is high, and the construction of urban roads will inevitably have an impact on the use of urban roads. In this environment, it is necessary to analyze and consider many aspects to reduce the restrictions on the normal operation of the city as much as possible, shorten the construction period accordingly, and improve construction efficiency and quality.

[0003] When constructing urban pipelines, trenches need to be excavated. Usually, mechanical excavation methods for trenches are mostly excavated by excavators. In this method, the trench is obtained by controlling the excavator's shovel head to dig the ground. When excavating with an excavator, a large amount of available area of urban roads is occupied, which greatly affects the normal operation of urban roads and also brings great safety hazards. At the same time, the existing trench excavation device cannot adjust the width and height of the trench well, resulting in the trench after excavation not meeting construction requirements and requiring secondary rework, which is more troublesome and inconvenient, and prolongs the construction period. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide an adjustable trench excavation device to solve the problems of occupying the available area of urban roads and being unable to adjust the opening and height of the excavated trench according to demand in the prior art.

[0005] To achieve the above-mentioned and other related purposes, the present invention provides an adjustable trenching device, comprising:

[0006] An excavation device, comprising a horizontal adjustment mechanism, two sets of side support mechanisms respectively hinged to the left and right ends of the horizontal adjustment mechanism, a screw conveying mechanism provided in the horizontal adjustment mechanism, an excavation mechanism, and two sets of center support mechanisms respectively hinged to the horizontal adjustment mechanism, wherein the excavation mechanism is rotatably connected between the two sets of side support mechanisms;

[0007] The excavation mechanism includes a roller shaft rotatably arranged between the two groups of the central support mechanisms, a plurality of first excavation assemblies, a hollow drum coaxially fixedly fitted on the roller shaft, a second excavation assembly symmetrically arranged at both ends of the roller shaft, and an excavation power assembly driving the roller shaft to rotate, an adjustment space is formed between the inner wall of the hollow drum and the outer wall of the roller shaft, and the plurality of first excavation assemblies are arranged along the axial direction of the roller shaft and are all located in the adjustment space;

[0008] The first excavation assembly includes a fixed plate coaxially fixedly matched with the roller shaft, a first gear coaxially fixedly matched with the roller shaft, a plurality of sliding rods, a plurality of pushing rods respectively vertically fixed to one end of the sliding rods, and a plurality of arc blocks respectively fixed to the other end of the sliding rods. The side surface of the first gear is provided with arc grooves equal in number to the pushing rods and slidably matched. The number of the sliding rods and the arc blocks is equal and corresponds one to one. The side surfaces of the hollow drum and the fixed plate are provided with a plurality of sliding grooves respectively slidably matched with the sliding rods. A plurality of roller cutters are arranged on each of the arc blocks.

[0009] an adjusting power assembly for driving a plurality of the first gears on a plurality of the first excavation assemblies to rotate simultaneously;

[0010] A screw conveying mechanism is used to convey the soil excavated by the excavation device out of the trench.

[0011] Optionally, blind holes are provided at both ends of the roller shaft;

[0012] Each of the second excavation components includes a transverse telescopic power member with a fixed end fixed to the bottom of the blind hole, a hollow extension cylinder with one end fixedly connected to the telescopic end of the transverse telescopic power member, a rotating cylinder inclined toward the rear end of the walking mechanism, multiple groups of first excavation parts arranged axially along the hollow extension cylinder, multiple groups of second excavation parts arranged axially along the rotating cylinder, and two rotating connection parts. One end of the rotating cylinder is coaxially fixedly connected to the other end of the hollow extension cylinder through the rotating connection part, and the other end is rotatably connected to the side support mechanism through a universal joint. The side wall of the blind hole has multiple axial grooves along its own axial direction, and the end of the hollow extension cylinder connected to the transverse telescopic power member has multiple transfer blocks slidably matched with the axial grooves in the circumferential direction.

[0013] Optionally, the rotating connection part includes a connecting sleeve, a connecting rod, two universal joints, and a connecting telescopic part. The connecting sleeve is open at one end and closed at the other end. The connecting sleeve slides with the connecting rod. One end of the two universal joints is coaxially fixed with the closed end of the connecting sleeve and one end of the connecting rod respectively. A plurality of grooves are provided on the circumference of the inner wall of the connecting sleeve, and a plurality of protrusions are provided on the circumference of the outer wall of the connecting rod. The grooves slide with the protrusions. The connecting telescopic part is provided in the connecting sleeve to control the extension and retraction of the connecting rod.

[0014] Optionally, the first excavation portion and the second excavation portion have the same structure;

[0015] The first excavation portion includes a plurality of excavation modules spaced apart along the circumference of the hollow extension tube, each excavation module including four first telescopic arms and an arc-shaped bar, the four first telescopic arms being arranged in a rectangular structure and having one end fixedly connected to the side wall of the hollow extension tube and the other end fixedly connected to a side of the arc-shaped bar facing the central axis of the hollow extension tube, the arc-shaped bar having a plurality of roller cutters;

[0016] The roller cutter on the arc-shaped strip adjacent to the second excavation portion and the side support mechanism extends outward to the outer end of the side support mechanism.

[0017] Optionally, the first telescopic arm is a hydraulic cylinder, a pneumatic cylinder or an electric push rod.

[0018] Optionally, the horizontal adjustment mechanism includes a U-shaped frame, two connecting plates vertically and symmetrically arranged at both ends of the opening of the U-shaped frame, and two L-shaped plates, wherein the connecting plates have first plate grooves on their sides, and the first plate grooves on the two connecting plates are respectively slidably engaged with the horizontal parts of the two L-shaped frames;

[0019] The horizontal adjustment mechanism also includes a bottom plate, two first connecting plates, a top plate and two second connecting plates. Both ends of the bottom plate have second plate grooves that slide with the two first connecting plates respectively. The two first connecting plates are fixedly connected to the two side surfaces of the L-shaped plates respectively. Both ends of the top plate have third plate grooves that slide with the two second connecting plates respectively. The two second connecting plates are fixedly connected to the two side surfaces of the L-shaped plates respectively.

[0020] Optionally, each group of the side support mechanisms includes a support arm hinged at one end to the horizontal adjustment mechanism, a supporting telescopic power member for vertically rotating the support arm, a screw rod, a screw table threadedly engaged with the screw rod, and an angle adjustment power member for driving the screw rod to rotate. The support arm has an angle adjustment groove along its own length direction, the screw rod is rotatably arranged in the angle adjustment groove, and the second excavation assembly is rotatably connected to the screw table.

[0021] Optionally, each group of the middle support mechanisms includes a middle support arm with one end hinged to the horizontal adjustment mechanism, a middle support telescopic power member for vertically rotating the middle support arm, and the other end of the middle support arm is rotatably connected to one end of the roller shaft.

[0022] Optionally, the adjusting power assembly includes an adjusting linear power member, multiple second gears, an adjusting shaft, and a rotating arm vertically and fixedly connected to the adjusting shaft. The number of the second gears is equal to the number of the first gears and they are engaged for transmission. The multiple second gears are coaxially fixed with the adjusting shaft. The fixed end and the telescopic end of the adjusting linear power member are respectively hinged to the inner wall of the adjusting space and the rotating arm, and the adjusting shaft is rotatably connected to each of the fixed disks.

[0023] Optionally, the adjusting linear power member is a hydraulic rod cylinder, a pneumatic cylinder or an electric push rod.

[0024] As described above, the adjustable trenching device of the present invention has at least the following beneficial effects:

[0025] The cooperation of multiple first excavation assemblies, second excavation assemblies symmetrically positioned at both ends of the roller shaft, a center support mechanism, and side support mechanisms allows the width of the excavation device to be adjusted to accommodate trenches of varying widths and heights, improving applicability and versatility. By adjusting the power assembly to simultaneously drive the rotation of multiple first gears, each driving the push rods to slide within the arcuate grooves. Multiple sliding rods slide within the sliding grooves on the fixed plate. In conjunction with the center support mechanism, the position of the roller cutter along the roller shaft circumference can be adjusted according to the trench height, effectively excavating trenches of varying heights and improving applicability and practicality.

[0026] A transversely telescopic power member is fixed to the bottom of the blind hole, and the telescopic end is connected to the hollow extension tube, allowing the hollow extension tube to flexibly extend and retract, thereby adjusting the position of the first excavation section and the second excavation section to accommodate different trench excavation width requirements. By extending and retracting each first telescopic arm of the excavation module on the first and second excavation sections extending out of the blind hole, and cooperating with the center support mechanism and the side support mechanism, it is possible to adapt to different excavation depth requirements. When it is necessary to adapt to different trench excavation widths, the two hollow extension tubes are extended to the left and right sides by the telescopic movement of the two transversely telescopic power members, thereby achieving the trench excavation width. When it is necessary to adapt to different trench excavation depths, the trench excavation depth is achieved by the telescopic movement of the first telescopic arm, the center support mechanism, the rotating connection section, and the side support mechanism. The rollers on the arc-shaped bar adjacent to the side support mechanism always extend outward to the outer end of the side support mechanism, allowing the second excavation assembly to better clean the soil at the edge of the trench when excavating, ensuring the excavation effect at the trench edge. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Shown is a schematic diagram of the three-dimensional structure of the utility model;

[0028] Figure 2 Shown is an exploded view of the first excavation assembly of the present invention;

[0029] Figure 3 Shown is a schematic diagram of the three-dimensional structure of the regulating power component of the present utility model;

[0030] Figure 4 Shown is an exploded view of the second excavation assembly and the center support mechanism of the present invention;

[0031] Figure 5 Shown is an exploded view of the second excavation portion and the temple support mechanism of the present invention;

[0032] Figure 6 Shown is a schematic diagram of the three-dimensional structure of the rotating connection part of the utility model;

[0033] Figure 7 Shown is a schematic diagram of the three-dimensional structure of the bottom plate of the present utility model;

[0034] Figure 8 Shown is a schematic diagram of the three-dimensional structure of the top plate of the present utility model.

[0035] Component number description

[0036] Excavation device 3, horizontal adjustment mechanism 31, U-shaped frame 311, connecting plate 312, L-shaped plate 313, first plate groove 314, bottom plate 315, first connecting plate 316, second plate groove 317, top plate 318, second connecting plate 319, third plate groove 3110, side support mechanism 32, support arm 321, supporting telescopic power member 322, screw rod 323, screw platform 324, angle adjustment power member 325, angle adjustment groove 326, excavation mechanism 33, roller shaft 331, blind hole 3311, first excavation component 332, fixed plate 3321, first gear 3322, sliding rod 3323, push rod 3324, arc block 3325, arc groove 3326, sliding groove 3327, hob 3328, adjustment power component 3329, adjusting linear power part 33291, second gear 33292, adjusting shaft 33293, rotating arm 33294, roller 333, second excavation assembly 334, horizontal telescopic power part 3341, rotating cylinder 3342, hollow extending cylinder 3343, first excavation part 3344, excavation module 33441, first telescopic arm 334411, arc-shaped bar 334412, second excavation part 3345, rotating connection part 3346, connecting sleeve 33461, connecting rod 33462, universal joint 33463, groove 33464, protrusion 33465, universal shaft 3347, shaft groove 3348, transmission block 3349, middle support mechanism 34, middle support arm 341, middle support telescopic power part 342. DETAILED DESCRIPTION

[0037] The following describes the implementation of the present invention through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0038] See also Figures 1 to 8. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of this utility model. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by this utility model without affecting the efficacy and purpose that can be achieved by this utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of this utility model. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of this utility model without substantially changing the technical content.

[0039] The following embodiments are for illustration only and can be combined with each other, and are not limited to the contents presented in the following single embodiments.

[0040] In this embodiment, please refer to Figures 1 to 8 The utility model provides an adjustable trench excavation device, comprising: an excavation device 3 and a spiral conveying mechanism, wherein the excavation device 3 comprises a horizontal adjustment mechanism 31, two sets of side support mechanisms 32 respectively hinged to the left and right ends of the horizontal adjustment mechanism 31, a spiral conveying mechanism provided in the horizontal adjustment mechanism 31, an excavation mechanism 33, and two sets of middle support mechanisms 34 respectively hinged to the horizontal adjustment mechanism 31, wherein the excavation mechanism 33 is rotatably connected between the two sets of side support mechanisms 32;

[0041] The excavation mechanism 33 includes a roller 331 rotatably arranged between the two groups of the central support mechanisms 34, a plurality of first excavation assemblies 332, a hollow roller 333 coaxially fixedly fitted on the roller 331, second excavation assemblies 334 symmetrically arranged at both ends of the roller, and an excavation power assembly for driving the roller 331 to rotate. The excavation power assembly can be an electric motor or a hydraulic motor, or other existing technologies, which are not described here. An adjustment space is formed between the inner wall of the hollow roller 333 and the outer wall of the roller 331. The plurality of first excavation assemblies 332 are arranged axially along the roller 331 and are all located in the adjustment space.

[0042] The first excavation assembly 332 includes a fixed plate 3321 coaxially fixedly matched with the roller shaft 331, a first gear 3322 coaxially fixedly matched with the roller shaft 331, a plurality of sliding rods 3323, a plurality of pushing rods 3324 respectively fixed vertically to one end of the sliding rod 3323, and a plurality of arc blocks 3325 respectively fixed to the other end of the sliding rod 3323. The second gear 33292 is rotatably connected to the fixed plate 3321. The side surface of the first gear 3322 has an arc groove 3326 equal in number to the pushing rod 3324 and slidingly matched. The sliding rod 3323 and the arc block 3325 are equal in number and In a one-to-one correspondence, the hollow drum 333 and the fixed plate 3321 each have a plurality of sliding grooves 3327 on the circumferential side thereof, which slide in cooperation with the sliding rods 3323. Each of the arcuate blocks 3325 is provided with a plurality of roller cutters 3328. During excavation, the roller cutters 3328 rotate with the drum 333 and can rotate on the drum 333, thereby helping to better crush and excavate soil or rock and reducing resistance during excavation. An adjustment power assembly 3329 is provided for simultaneously driving the plurality of first gears 3322 on the plurality of first excavation assemblies 332. The screw conveying mechanism is used to transport the soil excavated by the excavation device 3 out of the trench. The screw conveying mechanism utilizes existing technology and will not be described in detail here. The screw conveying mechanism is provided within the horizontal adjustment mechanism 31 and is capable of continuously transporting the excavated soil out of the trench, thereby improving operational efficiency. The excavation device 3 is installed at the front end of the walking device and is hoisted into the trench working pit by a lifting device. The walking device drives the excavation device 3 forward to excavate the soil in the trench. The walking device adopts existing technology and will not be described here.

[0043] The excavation device 3 is adapted to accommodate trenches of varying widths and heights through the coordination of multiple first excavation assemblies 332, second excavation assemblies 334 symmetrically positioned at both ends of the roller shaft, a center support mechanism 34, and side support mechanisms 32. By adjusting the power assembly 3329 to simultaneously drive the rotation of multiple first gears 3322, the push rods 3324 are driven to slide within the arcuate grooves 3326, while the multiple sliding rods 3323 slide within the sliding grooves 3327 on the fixed plate 3321. These, in conjunction with the center support mechanism 34, allow the position of the roller cutter 3328 on the roller shaft 331 to be adjusted circumferentially according to the trench height, effectively excavating trenches of varying heights and improving applicability and practicality.

[0044] In this embodiment, please refer to Figure 1 、 Figures 3 to 6 , both ends of the roller shaft 331 are provided with blind holes 3311;

[0045] Each of the second excavation components 334 includes a transverse telescopic power member 3341 with a fixed end fixed to the bottom of the blind hole 3311, a hollow protruding cylinder 3343 with one end fixedly connected to the telescopic end of the transverse telescopic power member 3341, a rotating cylinder 3342 inclined toward the rear end of the walking mechanism, multiple groups of first excavation parts 3344 arranged axially along the hollow protruding cylinder 3343, multiple groups of second excavation parts 3345 arranged axially along the rotating cylinder 3342, and two rotating connection parts 3346. One end of the rotating cylinder 3342 is coaxially fixedly connected to the other end of the hollow protruding cylinder 3343 through the rotating connection part 3346, and the other end is rotatably connected to the side support mechanism 32 through a universal joint 3347. The side wall of the blind hole 3311 has multiple axial grooves 3348 along its own axial direction, and the end of the hollow protruding cylinder 3343 connected to the transverse telescopic power member 3341 has multiple transfer blocks 3349 slidably matched with the axial grooves 3348 in the circumferential direction. The transverse telescopic power member 3341 includes a hydraulic cylinder, a pneumatic cylinder or an electric push rod; the blind hole 3311 provides an installation position for the transverse telescopic power member 3341, making the structure compact; the transverse telescopic power member 3341 is fixed to the bottom of the blind hole 3311, and the telescopic end is connected to the hollow extension tube 3343, so that the hollow extension tube 3343 can be flexibly extended and retracted, thereby adjusting the position of the first excavation part 3344 and the second excavation part 3345 to adapt to the excavation width requirements of different trenches.

[0046] In this embodiment, please refer to Figure 5 and Figure 6 The rotating connection part 3346 includes a connecting sleeve 33461, a connecting rod 33462, two universal joints 33463, and a connecting telescopic member. One end of the connecting sleeve 33461 is open and the other end is closed. The connecting sleeve 33461 slides with the connecting rod 33462. One end of the two universal joints 33463 is coaxially fixedly connected to the closed end of the connecting sleeve 33461 and one end of the connecting rod 33462 respectively. The inner wall of the connecting sleeve 33461 is circumferentially connected to the inner wall of the connecting sleeve 33461. A number of grooves 33464 are provided upward, and a number of protrusions 33465 are provided on the circumference of the outer wall of the connecting rod 33462. The grooves 33464 and the protrusions 33465 are slidably matched. The connecting telescopic part is provided in the connecting sleeve 33461 to control the extension and retraction of the connecting rod 33462. The connecting telescopic part is a hydraulic rod, a pneumatic rod or a flashlight push rod. The two ends of the connecting telescopic part are respectively fixedly connected to the bottom of the groove 33464 and the connecting rod 33462.

[0047] Through the combined design of the connecting sleeve 33461, the connecting rod 33462, the connecting telescopic piece and the two universal joints 33463, the connecting sleeve 33461 and the connecting rod 33462 are slidably matched, and the inner wall groove 33464 and the outer wall protrusion 33465 are slidably matched, which not only ensures the flexibility of the connection, but also can withstand forces in different directions to a certain extent. The universal joint 33463 can make the rotating cylinder 3342 flexibly rotate with the hollow extension cylinder 3343 at different angles, adapt to the complex terrain and angle changes during trench excavation, and meet the adjustment of different trench widths and depths.

[0048] In this embodiment, please refer to Figure 4 and Figure 5 , the first excavation portion 3344 and the second excavation portion 3345 have the same structure;

[0049] The first excavation part 3344 includes a plurality of excavation modules 33441 arranged at intervals along the circumference of the hollow protruding cylinder 3343, and each excavation module 33441 includes four first telescopic arms and an arc-shaped bar 334412. The four first telescopic arms are arranged in a rectangular structure and one end is fixedly connected to the side wall of the hollow protruding cylinder 3343, and the other end is fixedly connected to the side of the arc-shaped bar 334412 facing the central axis of the hollow protruding cylinder 3343. The arc-shaped bar 334412 has a plurality of rollers 3328; the second excavation part 3345 and the rollers 3328 on the arc-shaped bar 334412 adjacent to the side support mechanism 32 extend outward to the outer end of the side support mechanism 32.

[0050] By extending and retracting each first telescopic arm 334411 of the excavation module 33441 on the first excavation portion 3344 and the second excavation portion 3345 extending out of the blind hole 3311, and cooperating with the center support mechanism 34 and the side support mechanism 32, the excavation module 33441 can adapt to different excavation depth requirements. When adapting to different trench excavation widths, the two hollow extension cylinders 3343 are extended to the left and right by the two transverse telescopic power members 3341, thereby achieving the desired trench excavation width. When adapting to different trench excavation depths, the first telescopic arm 334411 is extended and retracted, and the center support mechanism 34, the rotating connection portion 3346, and the side support mechanism 32 cooperate to achieve the desired trench excavation depth. The roller cutters 3328 on the curved bar 334412 adjacent to the side support mechanism 32 always extend outward to the outer end of the side support mechanism 32, allowing the second excavation assembly 334 to better clean the soil at the trench edge when excavating, ensuring effective excavation at the trench edge.

[0051] In this embodiment, please refer to Figure 4 , the first telescopic arm is a hydraulic cylinder, a pneumatic cylinder or an electric push rod.

[0052] In this embodiment, please refer to Figure 1 、 Figure 7 and Figure 8 The horizontal adjustment mechanism 31 includes a U-shaped frame 311, two connecting plates 312 vertically and symmetrically arranged at both ends of the opening of the U-shaped frame 311, and two L-shaped plates 313. The side of the connecting plate 312 has a first plate groove 314. The first plate groove 314 on the two connecting plates 312 is respectively slidably matched with the horizontal parts of the two L-shaped frames;

[0053] The horizontal adjustment mechanism 31 also includes a bottom plate 315, two first connecting plates 316, a top plate 318 and two second connecting plates 319. Both ends of the bottom plate 315 have second plate grooves 317 that slide with the two first connecting plates 316 respectively. The two first connecting plates 316 are fixedly connected to the side surfaces of the two L-shaped plates 313 respectively. Both ends of the top plate 318 have third plate grooves 3110 that slide with the two second connecting plates 319 respectively. The two second connecting plates are fixedly connected to the side surfaces of the two L-shaped plates 313 respectively.

[0054] The sliding fit between the two L-shaped plates and the first plate slot 314 on the connecting plate 312 allows for flexible horizontal position adjustment, allowing the horizontal adjustment mechanism 31 to precisely change the width of the entire excavation device 3 according to the width requirements of different trenches, thereby greatly improving its adaptability to trenches of varying widths and enhancing the versatility of the device. The sliding fit between the first connecting plate 316 at the bottom and the bottom plate 315, and the sliding fit between the second connecting plate 319 at the top and the top plate 318, work in conjunction with the sliding fit between the L-shaped plates and the connecting plate 312. When adjusting the position of the L-shaped plates, the first connecting plate 316 and the second connecting plate 319 slide within the second plate slot 317 and the third plate slot 3110, respectively. This ensures the stability and integrity of the entire structure of the horizontal adjustment mechanism 31 during width adjustment, avoids localized uneven force or structural deformation, and ensures smooth and accurate width adjustment.

[0055] In this embodiment, please refer to Figure 1 and Figure 6Each set of the side support mechanisms 32 includes a support arm 321 hinged at one end to the horizontal adjustment mechanism 31, a support and telescopic power member 322 for vertically rotating the support arm 321, a screw rod 323, a screw base 324 threadedly engaged with the screw rod 323, and an angle adjustment power member 325 for driving the screw rod 323 to rotate. The support arm 321 has an angle adjustment slot 326 along its length. The screw rod 323 is rotatably arranged in the angle adjustment slot 326. The second excavation assembly 334 is rotatably connected to the screw base 324, and the screw base 324 is rotatably connected to the universal joint 3347. The support and telescopic power member 322 includes a hydraulic cylinder, a pneumatic cylinder, or an electric push rod. The angle adjustment power member 325 is an electric motor or a hydraulic motor. The screw base 324 slides in the angle adjustment slot 326.

[0056] When it is necessary to adjust the trench excavation depth, the angle adjustment power member 325 drives the screw rod 323 to rotate and drive the screw table 324 to slide in the angle adjustment groove 326, which will drive the universal joint 3347 to move with the screw table 324. At the same time, the connecting telescopic parts on the rotating connection part 3346 work simultaneously, so that the rotating cylinder 3342 and the hollow extension cylinder 3343 are always on the same horizontal plane, and also make the roller 3328 on the arc strip 334412 adjacent to the second excavation part 3345 and the side support mechanism 32 always extend outward to the outer end of the support arm 321 on the side support mechanism 32. The height of the support arm 321 is adjusted by telescoping the supporting telescopic power member 322, thereby meeting the construction requirements of different trench heights and improving the versatility and operation efficiency of the equipment.

[0057] In this embodiment, please refer to Figure 1 and Figure 4 Each group of the middle support mechanism 34 includes a middle support arm 341 with one end hinged to the horizontal adjustment mechanism 31, a middle support telescopic power part 342 for vertically rotating the middle support arm 341, and the other end of the middle support arm 341 is rotatably connected to one end of the roller shaft 331. The middle support telescopic power part 342 is a hydraulic cylinder, an air cylinder or an electric push rod. Through the combination of the middle support arm 341 and the middle support telescopic power part 342, the entire middle support mechanism 34 has high flexibility. One end of the middle support arm 341 is hinged to the horizontal adjustment mechanism 31, and the other end is rotatably connected to one end of the roller shaft 331. The vertical rotation of the middle support arm 341 can be achieved through the middle support telescopic power part 342, so that the middle support arm 341 can adjust the angle according to different work requirements, thereby changing the position and posture of the roller shaft 331.

[0058] In this embodiment, please refer to Figure 3The adjusting power assembly 3329 includes an adjusting linear power part 33291, multiple second gears 33292, an adjusting shaft 33293, and a rotating arm 33294 vertically and fixedly connected to the adjusting shaft 33293. The number of the second gears 33292 and the first gears 3322 are equal and meshingly transmitted. The multiple second gears 33292 are all coaxially fixed with the adjusting shaft 33293. The fixed end and the telescopic end of the adjusting linear power part 33291 are respectively hinged to the inner wall of the adjusting space and the rotating arm 33294, and the adjusting shaft 33293 is rotatably connected to each of the fixed disks 3321. By adjusting the telescopic push arm 33294 of the linear power member 33291, multiple second gears 33292 are driven to rotate. The second gears 33292 are equal in number to the first gears 3322 and mesh with each other. This gear transmission method effectively transmits power and has high transmission efficiency. During the power transmission process, power can be stably transferred from the second gears 33292 to the first gears 3322. The multiple second gears 33292 are coaxially fixedly engaged with the adjustment shaft 33293, ensuring the concentricity and stability of power transmission.

[0059] In this embodiment, please refer to Figure 3 The adjusting linear power part 33291 is a hydraulic rod cylinder, a pneumatic cylinder or an electric push rod.

[0060] Working principle: When the width needs to be adjusted, two horizontal telescopic power pieces 3341 are respectively fixed on the bottom of the two blind holes 3311, and the telescopic ends are connected to the hollow protruding cylinder 3343, so that the hollow protruding cylinder 3343 can be flexibly extended and retracted to adjust the position of the first excavation part 3344 and the second excavation part 3345, and the multiple excavation modules 33441 on the first excavation parts 3344 on the left and right sides are extended out of the blind hole 3311 to achieve different trench excavation widths. At this time, the two L-shaped plates are slidably matched with the first plate groove 314 on the connecting plate 312, and the position can be flexibly adjusted in the horizontal direction. The sliding fit of the first connecting plate 316 at the bottom end and the bottom plate 315 and the sliding fit of the second connecting plate 319 at the top and the top plate 318 work in coordination with the sliding fit of the L-shaped plate and the connecting plate 312. When the template is in the position, the first connecting plate 316 and the second connecting plate 319 slide in the second plate groove 317 and the third plate groove 3110 respectively, ensuring the stability and integrity of the entire structure of the horizontal adjustment mechanism 31 during the width adjustment process;

[0061] When the height needs to be adjusted, the telescopic push arm 33294 of the linear power part 33291 is adjusted to drive the multiple second gears 33292 to rotate. The number of second gears 33292 and the first gear 3322 are equal and meshing transmission. The rotation of the first gear 3322 drives the push rod 3324 to slide in the arc groove 3326, and multiple sliding rods 3323 slide in the sliding groove 3327 on the fixed plate 3321, so that the middle support telescopic power part 342 rotates the middle support arm 341 vertically. The middle support arm 341 can adjust the angle according to different working requirements, thereby changing the position and posture of the roller shaft 331, thereby adjusting the rotation radius of the hob 3328 on the arc block 3325, so as to effectively dig trenches of different heights. At the same time, through the first excavation part 3344 and the second excavation part 334 extending out of the blind hole 3311 5. Each first telescopic arm 334411 of the excavation module 33441 on the excavation module 33441 is telescopic, thereby adjusting the rotation radius of the roller 3328 on the arc strip 334412. The angle adjustment power member 325 drives the screw rod 323 to rotate and drives the screw table 324 to slide in the angle adjustment groove 326, which will drive the universal joint 3347 to move with the screw table 324. At the same time, the connecting telescopic members on the rotating connection part 3346 work simultaneously, so that the rotating cylinder 3342 and the hollow extension cylinder 3343 are always on the same horizontal plane, and also make the roller 3328 on the arc strip 334412 adjacent to the side support mechanism 32 of the second excavation part 3345 always extend outward to the outer end of the support arm 321 on the side support mechanism 32. The height of the support arm 321 is adjusted by telescoping the supporting telescopic power member 322, thereby meeting the construction requirements of different trench heights.

[0062] To sum up, the utility model can adjust the width of the excavation device 3 through the cooperation of multiple first excavation components 332, second excavation components 334 symmetrically arranged at both ends of the roller shaft, the middle support mechanism 34 and the side support mechanism 32, so as to adapt to trenches of different widths and heights, thereby improving applicability and versatility. By adjusting the power assembly 3329, multiple first gears 3322 are driven to rotate at the same time, and the push rods 3324 are driven to slide in the arc groove 3326 respectively. Multiple sliding rods 3323 slide in the sliding groove 3327 on the fixed plate 3321, and cooperate with the central support mechanism 34 to enable the position of the roller 3328 in the circumferential direction of the roller shaft 331 to be adjusted according to the height of the trench, thereby effectively excavating trenches of different heights, thereby improving applicability and practicality; through the transverse telescopic power part 3341 fixed at the bottom of the blind hole 3311, the telescopic end is connected to the hollow protruding tube 3343, so that the hollow protruding tube 3343 can be flexibly extended and retracted, thereby adjusting the position of the first excavation part 3344 and the second excavation part 3345 to adapt to the excavation width requirements of different trenches. By extending and retracting each first telescopic arm 334411 of the excavation module 33441 on the first excavation portion 3344 and the second excavation portion 3345 extending out of the blind hole 3311, and cooperating with the center support mechanism 34 and the side support mechanism 32, the excavation module 33441 can adapt to different excavation depth requirements. When adapting to different trench excavation widths, the two hollow extension cylinders 3343 are extended to the left and right by the two transverse telescopic power members 3341, thereby achieving the desired trench excavation width. When adapting to different trench excavation depths, the first telescopic arm 334411 is extended and retracted, and the center support mechanism 34, the rotating connection portion 3346, and the side support mechanism 32 cooperate to achieve the desired trench excavation depth. The roller cutters 3328 on the curved bar 334412 adjacent to the side support mechanism 32 always extend outward to the outer end of the side support mechanism 32, allowing the second excavation assembly 334 to better clean the soil at the trench edge when excavating, ensuring effective excavation at the trench edge. Therefore, the utility model effectively overcomes various shortcomings of the prior art and has high industrial utilization value.

[0063] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. An adjustable trenching device, characterized in that: include: An excavation device, comprising a horizontal adjustment mechanism, two sets of side support mechanisms respectively hinged to the left and right ends of the horizontal adjustment mechanism, a screw conveying mechanism provided in the horizontal adjustment mechanism, an excavation mechanism, and two sets of center support mechanisms respectively hinged to the horizontal adjustment mechanism, wherein the excavation mechanism is rotatably connected between the two sets of side support mechanisms; The excavation mechanism includes a roller shaft rotatably arranged between the two groups of the central support mechanisms, a plurality of first excavation assemblies, a hollow drum coaxially fixedly fitted on the roller shaft, a second excavation assembly symmetrically arranged at both ends of the roller shaft, and an excavation power assembly driving the roller shaft to rotate, an adjustment space is formed between the inner wall of the hollow drum and the outer wall of the roller shaft, and the plurality of first excavation assemblies are arranged along the axial direction of the roller shaft and are all located in the adjustment space; The first excavation assembly includes a fixed plate coaxially fixedly matched with the roller shaft, a first gear coaxially fixedly matched with the roller shaft, a plurality of sliding rods, a plurality of pushing rods respectively vertically fixed to one end of the sliding rods, and a plurality of arc blocks respectively fixed to the other end of the sliding rods. The side surface of the first gear is provided with arc grooves equal in number to the pushing rods and slidably matched. The number of the sliding rods and the arc blocks is equal and corresponds one to one. The side surfaces of the hollow drum and the fixed plate are provided with a plurality of sliding grooves respectively slidably matched with the sliding rods. A plurality of roller cutters are arranged on each of the arc blocks. an adjusting power assembly for driving a plurality of the first gears on a plurality of the first excavation assemblies to rotate simultaneously; A screw conveying mechanism is used to convey the soil excavated by the excavation device out of the trench.

2. The adjustable trenching device according to claim 1, characterized in that: Blind holes are provided at both ends of the roller shaft; Each of the second excavation components includes a transverse telescopic power member with a fixed end fixed to the bottom of the blind hole, a hollow extension cylinder with one end fixedly connected to the telescopic end of the transverse telescopic power member, a rotating cylinder inclined toward the rear end of the walking mechanism, multiple groups of first excavation parts arranged axially along the hollow extension cylinder, multiple groups of second excavation parts arranged axially along the rotating cylinder, and two rotating connection parts. One end of the rotating cylinder is coaxially fixedly connected to the other end of the hollow extension cylinder through the rotating connection part, and the other end is rotatably connected to the side support mechanism through a universal joint. The side wall of the blind hole has multiple axial grooves along its own axial direction, and the end of the hollow extension cylinder connected to the transverse telescopic power member has multiple transfer blocks slidably matched with the axial grooves in the circumferential direction.

3. The adjustable trenching device according to claim 2, characterized in that: The rotating connection part includes a connecting sleeve, a connecting rod, two universal joints, and a connecting telescopic part. The connecting sleeve is open at one end and closed at the other end. The connecting sleeve slides with the connecting rod. One end of the two universal joints is coaxially fixed with the closed end of the connecting sleeve and one end of the connecting rod respectively. A plurality of grooves are provided on the circumference of the inner wall of the connecting sleeve, and a plurality of protrusions are provided on the circumference of the outer wall of the connecting rod. The grooves slide with the protrusions. The connecting telescopic part is provided in the connecting sleeve to control the extension and retraction of the connecting rod.

4. The adjustable trenching device according to claim 2, characterized in that: The first excavation portion and the second excavation portion have the same structure; The first excavation portion includes a plurality of excavation modules spaced apart along the circumference of the hollow extension tube, each excavation module including four first telescopic arms and an arc-shaped bar, the four first telescopic arms being arranged in a rectangular structure and having one end fixedly connected to the side wall of the hollow extension tube and the other end fixedly connected to a side of the arc-shaped bar facing the central axis of the hollow extension tube, the arc-shaped bar having a plurality of roller cutters; The roller cutter on the arc-shaped strip adjacent to the second excavation portion and the side support mechanism extends outward to the outer end of the side support mechanism.

5. The adjustable trench excavation device according to claim 4, characterized in that: The first telescopic support arm is a hydraulic cylinder, a pneumatic cylinder or an electric push rod.

6. The adjustable trench excavation device according to claim 1, characterized in that: The horizontal adjustment mechanism includes a U-shaped frame, two connecting plates vertically and symmetrically arranged at both ends of the opening of the U-shaped frame, and two L-shaped plates, each of which has a first plate groove on its side, and the first plate grooves on the two connecting plates are respectively slidably engaged with the horizontal parts of the two L-shaped frames; The horizontal adjustment mechanism also includes a bottom plate, two first connecting plates, a top plate and two second connecting plates. Both ends of the bottom plate have second plate grooves that slide with the two first connecting plates respectively. The two first connecting plates are fixedly connected to the two side surfaces of the L-shaped plates respectively. Both ends of the top plate have third plate grooves that slide with the two second connecting plates respectively. The two second connecting plates are fixedly connected to the two side surfaces of the L-shaped plates respectively.

7. The adjustable trenching device according to claim 1, characterized in that: Each group of the side support mechanisms includes a support arm hinged at one end to the horizontal adjustment mechanism, a supporting telescopic power member for vertically rotating the support arm, a screw rod, a screw table threadedly engaged with the screw rod, and an angle adjustment power member for driving the screw rod to rotate. The support arm has an angle adjustment groove along its own length direction, the screw rod is rotatably arranged in the angle adjustment groove, and the second excavation component is rotatably connected to the screw table.

8. The adjustable trench excavation device according to claim 1, characterized in that: Each group of the middle support mechanisms includes a middle support arm with one end hinged to the horizontal adjustment mechanism, a middle support telescopic power member for vertically rotating the middle support arm, and the other end of the middle support arm is rotatably connected to one end of the roller shaft.

9. The adjustable trenching device according to claim 1, characterized in that: The adjusting power assembly includes an adjusting linear power member, multiple second gears, an adjusting shaft, and a rotating arm that is perpendicular and fixed to the adjusting shaft. The number of the second gears is equal to the number of the first gears and they are engaged for transmission. The multiple second gears are coaxially fixed with the adjusting shaft. The fixed end and the telescopic end of the adjusting linear power member are respectively hinged to the inner wall of the adjusting space and the rotating arm, and the adjusting shaft is rotatably connected to each of the fixed disks.

10. The adjustable trench excavation device according to claim 9, characterized in that: The adjusting linear power member is a hydraulic rod cylinder, an air cylinder or an electric push rod.

Images